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5.3.2. Postfix

To configure postfix correctly, run the following commands as root.
  1. Create a symbolic link allowing postfix to run the notification enqueuer with the following command: 
    # ln -s /usr/bin/ack_enqueuer.pl /etc/smrsh/.
  2. Edit the /etc/aliases file on the mail server and add the following line: 
    rogerthat01: "| /etc/smrsh/ack_enqueuer.pl"
  3. Ensure the following line exists in your /etc/postfix/main.cf file and change: 
    inet_interfaces = all
  4. Process the alias with the following command: 
    # newaliases
  5. Restart postfix: 
    # service postfix restart